Respiration objective questions and Answers

Leave a Comment / Chapter 14: Respiration in Plants, Biology, Class 11

Respiration objective questions and Answers manages cell breath or the component of the breakdown of food materials inside the cell to deliver energy and the catching of this energy for the blend of ATP. The concepts of Glycolysis, Aerobic Respiration, The Respiratory Balance Sheet, Fermentation, Amphibolic Pathway, and Respiratory Quotient are covered in the topic.

Respiration objective questions and Answers Download

1 The ultimate respiratory substrate, yielding maximum number of ATP molecules, is
(A) glycogen
(B) glucose
(C) amylose
(D) ketogenic amino acid

Answer:glucose
2 End product of citric acid/ Kreb’s cycle is
(A) citric acid
(B) pyruvic acid
(C) latic acid
(D) carbon dioxide and water

Answer:carbon dioxide and water
3 The first phase in the breakdown of glucose, in animal cell, is
(A) glycolysis
(B) E.T.S
(C) Kreb’s cycle
(D) Glycolysis

Answer: glycolysis
4 End product of fermentation are
(A) O2 and C2H5OH
(B) CO2 and O2
(C) CO2 and C2H5OH
(D) CO2 and acetyaldehyde

Answer:CO2 and C2H5OH
5 Out of 36 ATP molecules produced per glucose molecule during respiration
(A) 2 are produced outside glycolysis and 34 during repiratory chain
(B) 2 are produced outside mitochondria and 34 inside the mitochondria
(C) all the formed inside mitochondria
(D) 2 during glycolysis and 34 during Krebs cycle

Answer:2 are produced outside mitochondria and 34 inside the mitochondria
6 Incomplete oxidation of glucose into pyruvic acid with several intermediate steps is known as
(A) TCA pathway
(B) Glycolysis
(C) HMS pathway
(D) Glycolysis

Answer: Glycolysis
7 When one glucose molecule is completely oxidised, it changes
(A) 36 ADP molecules into 36 ATP molecules
(B) 38 ADP molecules into 38 ATP molecules
(C) 30 ADP molecules into 30 ATP molecules
(D) 32 ADP molecules into 32 ATP molecules

Answer: 38 ADP molecules into 38 ATP molecules
8 Terminal cytochrome of respiratory chain which donates electrons to oxygen is
(A) Cyt. b
(B) Cyt.a1
(C) Cyt.c
(D) Cyt.a3

Answer:Cyt.a3
9 R. Q is ratio of
(A) CO2 produced to substarate consumed
(B) CO2 produced to O2 consumed
(C) oxygen consumed to CO2 produced
(D) Oxygen consumed to water produced

Answer: CO2 produced to O2 consumed
10 Which of the following statements are correct regarding respiration in plants?
I. Respiration is the process of releasing energy from food.
II. Respiration takes place individually in all parts of the plants like stem, roots, leaves etc.
III. The rate of respiration is slow in plants whereas it is faster in humans and animals.
Select the correct answer from the codes given below:
(A) I and III are correct
(B) I and II are correct
(C) I, II and III are correct
(D) None of the above

Answer: I, II and III are correct

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